Baby won’t drink plant based milk?

Just wondering if anyone is or has experienced the same please. My little one was on prescription formula as she has a CMPA. She recently turned one and we were advised to switch to a plant based milk. I have tried oat, soya, coconut, almond and pea based milks and she refuses to drink any of them. I slowly introduced (started with alpro growing up oat milk as advised), but despite doing this and mixing it in foods etc, she will not drink any!!! This means she’s gone from two bottles of her formula to no milk at all. I know they need the nutrients and vitamins in the milk so I’m really not sure what else I can do, and it’s impacting her sleep as she’s not been having milk before bed. Any advice or tips please? Dietician suggested to try all of the above but nothings worked and no further advice has been given!!